Re: [PATCH] i486 CR4 oops, no_console_suspend
From: H. Peter Anvin
Date: Tue Aug 19 2008 - 12:11:45 EST
Ingo Molnar wrote:
i've had trouble no end with getting even kernel messages out to the
serial console during critical phases of suspend/resume. (especially in
combination with earlyprintk=ttyS0 - not surprisingly)
Especially during resume the UART is initialized back to something
really slow - 300 bauds or 9600 bauds. (depends on the chipset i guess)
So even though it works, it will only worked reliably when i
standardized all my baud settings to that very low setting.
Probably depends on the BIOS, actually; I suspect you end up with the
standard BIOS setting, which is *usually* 9600 bps.
-hpa
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